/Engine/Source/Editor/Kismet/Public/BlueprintNamespaceHelper.h
A pin type selection filter that can be used with pin type selector widgets to filter out pin types whose namespaces were not imported into the Blueprint editor context that's managed by this instance.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IPinTypeSelectorFilter](API\Editor\KismetWidgets\IPinTypeSelectorFilter) > GetPinTypeSelectorFilter() const